Australian researchers unveil world’s first underwater 3D concrete printer

20 February,2026 09:33 AM IST |  Sydney  |  Agencies

Australian researchers have developed the world’s first underwater 3D concrete printing system using a single-mix formulation that sets underwater without rapid-setting chemicals. The innovation resists washout and maintains structural integrity, potentially transforming marine and coastal construction

Objects made using the new system. PIC COURTESY/YOUTUBE/LUYTEN 3D


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Australian researchers have recently developed the world's first underwater 3D concrete printing system, using a single-mix concrete formulation designed to set underwater through material design alone.

The innovation eliminates the need for multi-stage mixes as well as rapid-setting chemicals. The mix is engineered to resist washout and maintain structural integrity during printing.

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